Hot Water Solutions
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors

Continuous Flow Hot Water Systems & Heaters

What is a Continuous Gas Hot Water System?

Instantaneous gas hot water is a modern and efficient system that provides hot water on demand, exactly when you need it! Unlike traditional storage water heaters that keep a tank full of hot water at all times, the instantaneous gas hot water system heats the water as it flows through the unit, ensuring a constant and endless supply of hot water. Say goodbye to cold showers and hello to instant comfort with this innovative technology!

system check

Is the continuous hot water system good?

Absolutely! The instantaneous hot water system is a fantastic choice for many reasons. Firstly, it offers endless hot water, so you’ll never run out, no matter how many people need a shower in your home. Secondly, it’s highly energy efficient, only heating water when required, which can lead to significant cost savings on your utility bills. Thirdly, it saves valuable space since there’s no need for a bulky storage tank. With all these benefits, it’s hard not to love the convenience and reliability of an instantaneous hot water system!

How does continuous gas hot water work?

The magic behind an instantaneous gas hot water system lies in its clever design. When you turn on a hot water tap, cold water from the mains starts flowing through the unit’s heat exchanger. A gas burner, ignited by a spark or a pilot light, heats the water rapidly as it passes through. Within seconds, you get a steady stream of piping-hot water at the perfect temperature! It’s a simple yet effective process that ensures you have hot water whenever and wherever you need it.

Reasons to choose a continuous hot water system

Endless Hot Water

Say farewell to waiting for a tank to refill and reheating times. With instantaneous hot water, you’ll have a continuous hot water supply, even during peak usage times.

Energy Efficiency

This eco-friendly option saves money and reduces your carbon footprint. The system only heats water as you use it, reducing unnecessary energy consumption. Say goodbye to preheating rituals and cold surprises. Instant hot water means no more delays, making your mornings smoother and your showers more enjoyable.

Space-Saving Wonder

Free up valuable space in your home by ditching the traditional water heater’s bulky tank. Enjoy more storage or living space – the choice is yours!

Long-lasting Investment:

Instantaneous hot water systems are built to last. With proper maintenance, you can enjoy hot showers and savings for years.

Versatile Installation

Whether you have a small apartment or a spacious house, these systems come in various sizes and configurations, accommodating different needs and budgets.

Temperature Control

Enjoy precise control over your water’s temperature, ensuring the perfect warmth for various tasks, from a relaxing bath to a quick hand wash.

Low Maintenance

Simplify your life with minimal maintenance requirements. Say goodbye to tank flushes and welcome hassle-free upkeep. You can trust in the consistency and reliability of instantaneous hot water. No matter the situation, you won’t have to worry about running out of hot water.

Modern Technology

Embrace the latest water heating technology and upgrade your home with an instantaneous gas hot water system. It’s a wise investment that pays off daily!

Explore our complete range here:

Storage vs. Instant hot water system: What’s the difference?


Storage hot water systems

Instant hot water system 

Electricity requirement 

Requires continuous electric flow

Requires electricity to operate the heating element. This energy is then used when hot water is needed.

Energy efficient 

Efficient- but requires continuous heating 

Highly energy efficient. As water is heated on demand

Need for a storage unit 

Requires a storage tank 

Doesn’t require a storage tank

Storage space 

Larger storage space required 

Less space due to the absence of a storage tank


Periodic tank flushing and anode replacement 

Minimal maintenance- no tank flushing needed

Popular brands

Dux, Bosch, Rheem

Vulcan, Raheem, Dux, Stibel, Aquamax, Bosch, Saxon

Pros & cons of continuous hot water systems



Endless Hot Water

Higher Initial Cost

Energy Efficient

Gas Line Required (for gas models)


Possible Flow Rate Limitations (for certain models)

Quick and Convenient

Requires Professional Installation

Long-lasting Investment

Electricity Demand (for electric models)

Precise Temperature Control


Low Maintenance


Reliable Performance


Versatile Installation


Modern Technology


Comparison between different types of hot water systems


Electric hot water systems

Gas hot water systems 

Solar hot water systems

Heat pump hot water systems 


Heats water using electricity.

Heats water using gas and stores it in a tank

Utilises sunlight to heat water

Extracts heat from the air to heat water

Tank capacity 

Various sizes available

Different sizes; larger tanks for more power.

Varies based on collector size and tank capacity.

Comes in various sizes for different needs.

Household capacity 

Suitable for various household sizes.

Suitable for various household sizes.

Suitable for households With adequate sunlight.

Suitable for multiple household sizes.

Ease of use 

Simple operation; easy temperature adjustments.

Convenient; temperature control available.

Easy to use; reliant on sunlight availability.

User-friendly with temperature settings.

Installation time 

Quick and straightforward installation.

Quick install, but requires a gas connection.

Moderate installation time for collectors and tanks.

Moderate installation time with electrical setup.

Outdoor or indoor

Indoor installation only.

Outdoor installation; protected from weather.

Typically outdoor installation is for optimum sunlight.

Outdoor installation requires adequate space.


5-10 years

5-10 years

10-15 years

5-10 years

Running cost 

Moderate running costs; dependent on electricity rates.

Moderate running costs, influenced by gas prices

Lower running costs with free solar energy.

Efficient operation leads to lower running costs.


varies but is generally 10-15 years.

Lifespan varies but is generally 10-15 years.

Long lifespan with proper maintenance.

Lifespan varies but is generally 10-15 years.

Safety features 

Equipped with standard safety features.

Equipped with standard safety features.

Safe, non-toxic, and low-risk operation.

Equipped with standard safety features

Temperature control

Precise temperature control for user comfort.

Precise temperature control for user comfort.

Limited control, reliant on sunlight intensity.

Precise temperature control for user comfort.

Energy efficient 

Varies based on system type and usage habits.

Varies based on system type and usage habits

Highly efficient with free solar energy

Highly efficient with heat extraction.

Value for money 

Cost-effective solution for some households.

Provides value with efficient gas heating.

Long-term value with renewable energy savings.

Good value with energy-efficient performance.

Price range 

Affordable initial cost; running costs may vary.

Moderately priced; influenced by gas prices.

Higher upfront cost, but potential long-term savings

Moderately priced with efficient operation

Frequently Asked Questions

Yes, most instant gas hot water systems require a small amount of electricity to operate the ignition and control mechanisms. However, the main heating source is gas, providing efficient hot water on demand.

Instantaneous hot water systems can be either gas or electric, but the most common type is gas-powered. Gas models heat the water as it flows through, while electric models use heating elements to provide instant hot water.

Yes, gas-powered instantaneous hot water systems use gas as the primary energy source for heating water. This allows for an efficient and continuous hot water supply whenever you need it.

Instant gas hot water systems are designed to be energy-efficient, using gas only when hot water is needed. Gas consumption varies based on size, usage frequency, and desired water temperature.

An instant hot water system can last between 10 to 15 years with proper maintenance and care. Regular servicing and attention to any issues can extend the system’s lifespan and ensure reliable performance.

Instant hot water systems vary in cost based on brand, size, model, and installation needs. On average, they range from a few hundred to a few thousand dollars, including both purchase and installation.

Instant hot water systems have a higher initial cost but are more energy-efficient, resulting in long-term utility bill savings. Their convenience and efficiency make them a worthwhile investment.

Product Enquiry